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    <title>Document</title>
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    <script>
        var name = "windowsName";
        function a() {
            var name = "Cherry";

            console.log(this.name);          // windowsName

            console.log("inner:" + this);    // inner: Window
        }
        a();
        console.log("outer:" + this)         // outer: Window
    </script>
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